Product Overview

The DO-DT20 Lift Access Control Management Elevator Controller is a specialized access control board designed for multi-floor elevator deployment in commercial buildings, residential towers, office complexes, and industrial facilities. Unlike standard one-to-one card reader systems, the DO-DT20 enables a single card reader to manage access across multiple floors, distinguishing user privileges and directing them to authorized levels only. This eliminates the need for separate readers per floor and reduces hardware complexity in large-scale elevator projects. System integrators and building contractors choose this controller for its Wiegand 26/34bit compatibility, TCP/IP network communication, and support for up to 20,000 users with 100,000 offline event buffers. The unit is suitable for new installations as well as retrofit upgrades where existing elevator infrastructure must be integrated with modern access control logic.

Product Advantages

The DO-DT20 solves a common operational problem in multi-tenant buildings: how to restrict elevator floor access without installing individual readers at every landing. In typical office towers, residential apartments, or industrial sites with restricted zones, a single controller manages all floor permissions from one centralized reader. Users swipe or present a credential and the system determines which floors are accessible. For users with multi-floor privileges, floor selection is enabled only for authorized levels, preventing unauthorized floor access. Security personnel and administrators can be granted full floor access as needed. This approach reduces installation labor, cabling costs, and ongoing maintenance overhead. For building owners and facility managers, the controller improves tenant security, reduces energy waste from unauthorized floor travel, and provides an audit trail of elevator usage via the event buffer.

Key Features

• Multi-Floor Access Control: Supports 20 floors per unit, expandable to 40 floors by adding one DO-DT20K expansion board, making the system scalable for mid- to high-rise buildings.
• Wiegand 26/34bit Input: Compatible with all standard Wiegand card readers, including Motorola, HID, EM, Mifare Classic, and other 125kHz or 13.56MHz credential types, offering flexibility for existing card systems.
• High User Capacity: Stores up to 20,000 unique user credentials and maintains 100,000 offline event records, suitable for buildings with large tenant populations or high traffic volumes.
• TCP/IP Communication: 10M/100M self-adaptive Ethernet connection to a central PC for real-time monitoring, configuration, and data retrieval, simplifying network integration for IT and security teams.
• Offline Event Buffering: When network connection is interrupted, the controller continues to operate and logs all events locally, ensuring no access data is lost during network outages.
• 12V DC 5A Power Supply: Stable power input designed for continuous 24/7 operation in commercial and industrial environments.
• Compact Enclosure: Dimensions of 164mm × 106mm and net weight of 0.30kg allow for easy mounting inside elevator control cabinets or machine rooms without occupying excessive space.

Technical Specifications

Industrial Applications

The DO-DT20 is deployed by system integrators, security contractors, and facility management teams in the following scenarios:

• Commercial Office Towers: Restrict floor access to authorized tenants and employees, preventing unauthorized entry to executive suites, server rooms, or restricted departments.
• Residential Apartment Buildings: Allow residents to access only their own floor while blocking common area floors from non-residents, improving occupant safety and reducing unauthorized foot traffic.
• Government and Corporate Facilities: Enforce multi-tiered access policies where different personnel have different floor permissions, with full audit trail capability via the event buffer.
• Industrial Complexes and Warehouses: Control elevator access to production floors, storage levels, and administrative zones based on employee role or shift schedule.
• Hospitals and Laboratories: Limit elevator stops to authorized clinical floors, research areas, or restricted wings while allowing security staff full access during emergencies.
• Parking Structures and Multi-Level Facilities: Manage vehicle and personnel elevator access to specific parking levels or service floors.

In each environment, the DO-DT20 reduces the need for multiple readers and controllers per elevator bank, lowering total cost of ownership and simplifying ongoing credential management.

OEM / ODM Manufacturing Support

As an experienced do rfid reader manufacturer, we offer OEM and ODM customization for the DO-DT20 elevator controller to meet specific project requirements. Customization options include:

• Firmware Modification: Adjust floor logic, privilege rules, or event logging behavior to match unique building policies or local regulatory standards.
• Hardware Configuration: Modify input/output interfaces, relay ratings, or expansion board layouts for integration with existing elevator control panels.
• Brand Labeling and Packaging: Apply private labeling, custom product markings, and bespoke packaging for distribution under the buyer’s brand identity.
• Cable and Connector Customization: Specify connector types, cable lengths, or wiring harness configurations to simplify field installation for large-scale projects.
• Documentation and Manuals: Provide technical documentation, installation guides, and user manuals in the buyer’s language or format.

OEM and ODM orders benefit from dedicated engineering support, prototype validation, and batch consistency testing to ensure every unit performs identically across large deployments.

Factory Production Advantages

Our manufacturing facility has been producing RFID-based access control products since 2000, with over two decades of experience in industrial electronic production. Key production advantages include:

• Stable Production Capacity: We maintain consistent manufacturing output to support both small sample orders and bulk wholesale shipments without supply interruptions.
• Quality Inspection Process: Every DO-DT20 controller undergoes functional testing, Wiegand signal verification, TCP/IP communication validation, and power stability checks before packing.
• Batch Consistency: Production batches are tested for uniform performance, ensuring that controllers installed across different elevators in the same building behave identically.
• Export Experience: With international shipping knowledge, we handle documentation including Certificate of Origin, FTA, Form F, and Form E to facilitate customs clearance in destination countries.
• Flexible Trade Terms: We support EXW, FOB, FCT, CIF, and CFR terms, and coordinate with major carriers such as DHL, FedEx, TNT, UPS, and sea/air freight forwarders to optimize shipping cost and transit time.

Bulk Supply & Project Deployment Support

For system integrators, distributors, and contractors managing large-scale elevator access control projects, the DO-DT20 is available for bulk ordering with the following support:

• Volume Pricing: Competitive pricing tiers for bulk quantities, with cost reductions for project-scale orders of 50, 100, 500 or more units.
• Fast Lead Time: Sample orders typically ship within 1 to 5 days. Bulk orders of up to 5,000 units are generally produced and dispatched within 7 to 15 days. Larger quantities of 100,000 units or more are completed within 15 to 30 days, depending on customization complexity.
• Project Integration Assistance: Technical support is available to help integrators configure the controller for compatibility with existing elevator control systems, network topology, and credential databases.
• Long-Term Supply Commitment: For distributors and wholesalers requiring ongoing inventory replenishment, we maintain stable production schedules and component sourcing to ensure continuous availability.
• Sample Validation: Free samples are available for quality verification and system compatibility testing before bulk commitment, with the buyer covering shipping costs.

We invite project managers, security consultants, and procurement teams to contact us for specifications, pricing, and customization feasibility.

Frequently Asked Questions

Q: How many floors can one DO-DT20 controller manage?
A: The standard DO-DT20 supports up to 20 floors. If your building requires control over 21 to 40 floors, one DO-DT20K expansion board can be added to double the floor capacity.

Q: Which card readers are compatible with this elevator controller?
A: The DO-DT20 accepts Wiegand 26bit or 34bit input, making it compatible with most commercial card readers, including those from Motorola, HID, EM, and Mifare One. Any reader that outputs a standard Wiegand protocol can be used.

Q: Can the DO-DT20 operate without a network connection?
A: Yes. The controller maintains full access control functionality offline and stores up to 100,000 event records locally. When the TCP/IP connection is restored, event data is uploaded to the central management software.

Q: How many users can be stored in the system?
A: The DO-DT20 can store up to 20,000 unique user credentials, which is sufficient for most commercial and residential buildings.

Q: What power supply is required?
A: The controller requires a 12V DC 5A power supply. Ensure the power source is stable and rated for continuous 24/7 operation.

Q: Can the product be customized with my company branding?
A: Yes. We offer OEM and ODM services including private labeling, custom firmware, and packaging. Contact us with your specific requirements for a customization quote.

Q: What is the typical lead time for bulk orders?
A: For bulk orders of up to 5,000 units, lead time is generally 7 to 15 days. Larger orders of 100,000 units or more typically require 15 to 30 days, depending on the customization level.

Q: How is the product shipped?
A: We ship via DHL, FedEx, TNT, UPS, EMS, sea freight, or air freight. Buyers may also arrange their own shipping forwarder. We assist with customs documentation including CO, FTA, Form F, and Form E as needed.

Q: Is a sample available for testing before bulk purchase?
A: Yes, free samples are available. The buyer covers the shipping cost. We recommend testing a sample unit to validate compatibility with your elevator system and credential format before placing a bulk order.

Q: What warranty is provided?
A: The DO-DT20 carries a 2 to 3 year warranty against manufacturing defects, excluding damage caused by improper installation, misuse, or external factors.

For detailed technical documentation, pricing, or to discuss your project requirements, email inquiries to: info@dorfidreader.com.